To the cheers and catcalls of the audience, fifty little Sidewinder dragons came slithering through the dust into the arena, their greengage eyes glistening greedily.
  — Book 3  

Sidewinders are a species of Bog Dragon that first appear in Book 3, How to Speak Dragonese.

Physical Appearance

Sidewinders resemble a cat-sized winged snake with blue scales and black stripes. They have eyes all over their bodies. The eyes are green, according to How to Speak Dragonese.

Sidewinder eggs are blue in color, and have a hole in them through which the Sidewinder can see.


Sidewinders are chameleons, meaning they can change color. The multitude of eyes exist in order to see one of their many predators. Because they are hunted by many other dragons, they have developed extra eyes and camouflage. Not to mention they fly sideways, in order to evade attackers. They also have X-ray vision.

Sidewinders can dance or go through complex motions to confuse its prey.

Sidewinder eggs have a hole in the shell to spot predators. If a predator approaches, the egg quickly rolls away.


Though not much have been seen of their personality, it can be assumed they are very careful and skittish, considering they have many predators.

The Sidewinder is a pack hunter, that confuse its victims with a hypnotizing dance.

The Sidewinders were not large but they were vicious pack hunters. They were also chameleons. Every one of them was exactly the color of the dust it was lying in.
  — Book 3  

They remained unaligned in the during the Second Dragon War.


How to Speak Dragonese

When Hiccup, Fishlegs and Camicazi were captured by the Romans, the trio watched them releasing these pack hunters into the Arena, where they devoured a flock of dye-colored doves. The Sidewinders, however, in turn were eaten by a pack of fearsome Flashfangs. This was part of a Coliseum spectacle for entertainment for the Romans.

The Incomplete Book of Dragons

Sidewinders and their eggs are detailed in this reference book, as well as in the 'Dragon Key' at the back of the book.


  • The hypnotizing dance of the Sidewinder may be based on the dance some species of Mustelid, like stoats, use in order to confuse their prey.
  • Their way of moving may be based on certain desert snakes, who use a sideways movement in order to avoid the hot sand.
  • As it was stated they have many predators and therefore many adaptations, its safe to assume Sidewinders are very low in the food chain.


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